import { MultiDbManager } from '../core/multi-db-manager';
import { ReasonCode } from '../models/reason-codes';
import { ActionHint } from '../models/action-hint';
/**
 * Vector backend status information.
 */
export interface VectorBackendStatus {
    /** Type of backend (chromadb, vss, or fallback) */
    backend: 'chromadb' | 'vss' | 'fallback' | 'none';
    /** Mode (expected backend for this platform) */
    mode: 'chromadb' | 'vss' | 'fallback';
    /** Whether the expected backend is available */
    expected_available: boolean;
    /** Whether the backend is reachable */
    reachable: boolean;
    /** Whether fallback is active */
    fallback: boolean;
    /** Reason code for the current status */
    reason_code: ReasonCode;
    /** Human-readable description */
    description: string;
    /** Action hints for resolving issues (if any) */
    action_hints?: ActionHint[];
    /** Platform information */
    platform: string;
}
/**
 * Vector backend healthcheck result.
 */
export interface VectorBackendHealthcheck {
    /** Whether the healthcheck passed */
    healthy: boolean;
    /** Reason code */
    reason_code: ReasonCode;
    /** Latency in milliseconds (if measurable) */
    latency_ms?: number;
    /** Error code (if any) */
    error_code?: string;
    /** Human-readable description */
    description: string;
    /** Action hints for resolving issues (if any) */
    action_hints?: ActionHint[];
}
/**
 * API for checking vector backend status and health.
 */
export declare class VectorBackendStatusApi {
    private dbManager;
    constructor(dbManager: MultiDbManager);
    /**
     * Gets the current vector backend status.
     *
     * @returns Promise that resolves to vector backend status
     */
    getVectorBackendStatus(): Promise<VectorBackendStatus>;
    /**
     * Performs a healthcheck on the vector backend.
     * Attempts to perform a simple query to verify the backend is responsive.
     *
     * @returns Promise that resolves to healthcheck result
     */
    healthcheckVectorBackend(): Promise<VectorBackendHealthcheck>;
    /**
     * Gets action hints for a specific reason code.
     */
    private getActionHintsForReason;
}
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